Pierre Daye (24 June 1892, Schaerbeek, Belgium – 24 February 1960, Buenos Aires, Argentina) was a Belgian journalist and Nazi collaborator. As supporter of the Rexist Party, Daye exiled himself to Juan Peron's Argentina after World War II.

In World War I Daye served in the Belgian Army on the Yser Front and in East Africa. In 1918 he published a book about his experiences in the Battle of Tabora.

Pierre Daye was in charge of foreign politics in the Nouveau Journal, a newspaper supporting the National Socialist thesis created in October 1940 by Paul Colin and under the direction of Robert Poulet.^[1]

Daye was a shareholder in the Editions de la Toison d'Or created during the war (out of a total of 150 shares, 135 were owned by the Slovak group Mundus, which was responsible to the Reich Foreign Affairs Minister headed by Joachim von Ribbentrop.^[2]) .

Daye was a correspondent of Je suis partout, the ultra-collaborationist French language review headed by Robert Brasillach. He was sentenced to death as a collaborator on 18 December 1946, by the Brussels War Council.^[3]

After the war, he fled to Argentina with the help of Charles Lescat, who also worked at Je suis partout.^[3] There, he took part in the meeting organized by Juan Perón in the Casa Rosada during which a network (colloquially called ratlines) was created, to organize the escape of war criminals and collaborationists.^[4] Along with countryman René Lagrou and others such as Jacques de Mahieu, Daye became central to the Nazi escape routes.^[5]

In Argentina, Daye resumed his writing activities, becoming the editor of an official Peronist review.^[6] He returned to Europe where he wrote his memoirs, and died in 1960 in Argentina.^[3]

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